railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Cathode Ray Oscilloscope
Which of the following can be used to measures rms, peak and an average value of an a.c voltage?
I) Hotwire instrument
II) Rectifier instrument
III) Megger
IV) CRO
1
I and II only
2
II and III Only
3
III Only
4
IV Only